<?php

/**
 * This is the model class for table "Lop".
 *
 * The followings are the available columns in table 'Lop':
 * @property string $MaLop
 * @property string $MaKhoi
 * @property string $MaNH
 * @property integer $MaGVCN
 *
 * The followings are the available model relations:
 * @property GiaoVien $maGVCN
 * @property Khoi $maKhoi
 * @property NamHoc $maNH
 * @property PhanCong[] $phanCongs
 * @property PhongHoc[] $phongHocs
 * @property QuaTrinh[] $quaTrinhs
 */
class Lop extends CActiveRecord
{
	/**
	 * Returns the static model of the specified AR class.
	 * @return Lop the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return 'Lop';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('MaLop, MaKhoi, MaNH', 'required'),
			array('MaGVCN', 'numerical', 'integerOnly'=>true),
			array('MaLop, MaKhoi, MaNH', 'length', 'max'=>5),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('MaLop, MaKhoi, MaNH, MaGVCN', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'maGVCN' => array(self::BELONGS_TO, 'GiaoVien', 'MaGVCN'),
			'maKhoi' => array(self::BELONGS_TO, 'Khoi', 'MaKhoi'),
			'maNH' => array(self::BELONGS_TO, 'NamHoc', 'MaNH'),
			'phanCongs' => array(self::HAS_MANY, 'PhanCong', 'MaLop'),
			'phongHocs' => array(self::HAS_MANY, 'PhongHoc', 'MaLop'),
			'quaTrinhs' => array(self::HAS_MANY, 'QuaTrinh', 'MaLop'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'MaLop' => 'Mã lớp',
			'MaKhoi' => 'Khối',
			'MaNH' => 'Năm học',
			'MaGVCN' => 'GVCN',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('MaLop',$this->MaLop,true);
		$criteria->compare('MaKhoi',$this->MaKhoi,true);
		$criteria->compare('MaNH',$this->MaNH,true);
		$criteria->compare('MaGVCN',$this->MaGVCN);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}
}